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| 1 | +--- |
| 2 | +title: "Spatial Ecology - Geocomputation with GRASS" |
| 3 | +author: "Giuseppe Amatulli" |
| 4 | +date: 06/19/2025 |
| 5 | +format: |
| 6 | + html: |
| 7 | + toc: true |
| 8 | + code-tools: true |
| 9 | + code-copy: true |
| 10 | + code-fold: false |
| 11 | +categories: [beginner, intermediate, Bash, HPC, hydrology, external, course] |
| 12 | +description: GRASS tutorials for geocomputation, hydrology, species distribution modeling, and HPC. |
| 13 | +execute: |
| 14 | + eval: false |
| 15 | +--- |
| 16 | + |
| 17 | +# GRASS Introduction |
| 18 | + |
| 19 | +Learn the basics of GRASS including the data structure, command syntax, working environment, mapsets, and region settings using the command line. |
| 20 | + |
| 21 | +<https://spatial-ecology.net/docs/build/html/GRASS/grass_intro.html> |
| 22 | + |
| 23 | +# Start a New GRASS Project |
| 24 | + |
| 25 | +Create a new GRASS project from scratch, import data, and configure the working environment. |
| 26 | + |
| 27 | +<https://spatial-ecology.net/docs/build/html/GRASS/grass_newproject.html> |
| 28 | + |
| 29 | +# Stream-Network Extraction and Basin Delineation |
| 30 | + |
| 31 | +Use GRASS for hydrographic feature extraction at large scales, including tiled flow accumulation, stream network extraction, and basin delineation. Also available as a [Google Colab version](https://spatial-ecology.net/docs/build/html/GRASS/grass_hydro_colab.html). |
| 32 | + |
| 33 | +<https://spatial-ecology.net/docs/build/html/GRASS/grass_hydro.html> |
| 34 | + |
| 35 | +# Species Distribution Modeling with GRASS |
| 36 | + |
| 37 | +Geocomputation for a Random Forest species distribution model using GRASS to prepare environmental predictors and generate predictions. |
| 38 | + |
| 39 | +<https://spatial-ecology.net/docs/build/html/GRASS/SDM1_MWood_gecomp4GRASS.html> |
| 40 | + |
| 41 | +<https://spatial-ecology.net/docs/build/html/GRASS/SDM1_MWood_GRASSmodel.html> |
| 42 | + |
| 43 | +# Use of GRASS in HPC |
| 44 | + |
| 45 | +Set up and run GRASS in a High Performance Computing cluster environment using Bash scripting and the Slurm queuing system. |
| 46 | + |
| 47 | +<https://spatial-ecology.net/docs/build/html/HPC/hpc_setting_grass.html> |
| 48 | + |
| 49 | +Video recording (29 min): <https://youtu.be/4i1Fs29D0-A> |
| 50 | + |
| 51 | +Author: Giuseppe Amatulli, Yale University / Spatial Ecology |
| 52 | + |
| 53 | +These materials were developed as part of the US NSF-funded POSE project (Award 2303651). |
| 54 | + |
| 55 | +{.preview-image} |
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